Why are light switches so often wired in the wrong order. For example, on a single board, the switch closest to the hallway is for the lounge while the switch closest to the lounge turns on the hallway light. Is this less likely to happen in luxury homes? Can I fix this easily myself?
Why are light switches so often wired in the wrong order. For example, on a single board, the switch closest to the hallway is for the lounge while the switch closest to the lounge turns on the hallway light.
Because money. Paying someone else less money to do a set amount of work is a way to increase profits. The electricians for tract (non custom) homes need to do the set amount of work in the least amount of time to increase or even have a profit. There is no motivation for them to care about the switch order and a motivation to not care as doing so would take time.
Is this less likely to happen in luxury homes?
If the luxury home is a tract home, then probably not. If a custom home, then absolutely! I would even say that it does not happen in high end homes as the home owner is very involved and the electricians are used to working with such clients, everyone knows that the details are important
Can I fix this easily myself?
Yes, if the wire tails are long enough. It can be as easy as pulling off the cover, pulling the mount screws and moving the switches (no rewiring). Turn off the power at the panel first of course
The switch plate was wired correctly but screwed in upside-down?
I noticed that in one house I moved into: a three-way switch not only had the left-hand switch controlling a light off to the right, but each of the three switches was set to turn on by pressing the upper half of the rocker, and off by pressing the lower.
When I unscrewed the plate (after removing power from that circuit, of course!), I found that the wires were all twisted round. Rotating the switch plate 180° not only untwisted the wires, but also restored the switch order and orientation! So I concluded that at some point someone had simply screwed the switchplate in the wrong way up.
That doesn't explain all cases, of course; but it has happened at least once!
(Of course, don't try this if the wires aren't twisted around; you don't want to stretch or pull them out…)